20451321

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1237}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 32445504

約数和(自身を除く): 11994183

約数列:

[1, 3, 9, 11, 33, 99, 167, 501, 1237, 1503, 1837, 3711, 5511, 11133, 13607, 16533, 40821, 122463, 206579, 619737, 1859211, 2272369, 6817107, 20451321]

約数ペア:

[(1, 20451321), (3, 6817107), (9, 2272369), (11, 1859211), (33, 619737), (99, 206579), (167, 122463), (501, 40821), (1237, 16533), (1503, 13607), (1837, 11133), (3711, 5511)]